Nail fastener



NAIL FASTENER Filed dan. s, 1925 Y 'QI n WA, Y I '4- 7-5 Vi 7 3 l MV ,7 /7 Afa/MMR i5, wwe

l KNETZKY. 0E GAQUQGD, NEW JERSEY, ASSIGNE T0 BERRE? E. NEWHALL, QE

LNFIELD, NEW JERSEY.

EMME.' FSTEBZYER.

T0 wwm f/nay concern:

it known that I, JOHN KAMTZKY, a. @ideen of the United States. esidinw ai; @news-0d, in the county of Union and' State New Jersey, have 'made certain new sind useui 'mpmvements in Nail Fasseners, of whisk ehe eiowing .is a. speeeeion, taken. in Connection Wh the accompanying drew- ,ieggfx ly imvemien to mii fasteners in Whisk by mereijy Sirk-'ing bhe mailv inem lie efeiei, shie or expansion member the werk is seemed "e0 the Wa o1- other' sutabie supp.' w.

My invemion more perticuiariy relates to such e. neil fastener in which :the expansion xlembez er she'id is preferably 'formed 'from siee miami ami bent back upon itsei to @Ferm ew@ Sides which are adapted e be .eieee hy the neil as if@ is driven home. My invention further covers sue-h an pension. sieid which .is edapized Le be e-.fmae iy entering neil z'st in one di.- mfu 'eilen epox'tion ef the Shield er adapted te be expanded in e. z eiiieetioi. to Qbzein rmer .geip m between the lexpansion Shield and wei, ceiiing 01 other suppeifu in which y .ii/en'iliofi urizhei 0 Such e mul Tfasenexr which is piiiwied with a weekenei. perioie meer. hagmeetiug ends of he siie., and which ie aaped 'im eeopemte wizh the emi ef ehe mii to obtain ghe second expensive.

My inven'ion further reietes 'to cetein sirieiee @i manufacture, eombinezions and subeorsbizeiiens sind detaiis of coneruetion :zii mi wiiciir Wili be mre fuly h ereinsyfte de scribed pointed Gui; ifi tile claims.

n h@ drawing have shown one em- 'iodmeng of my inventien, bui.' iii. is of eemse 'im he .iideseod that my invenion is not eenfeed ze this embodiment shown. by

iiuss'aton.

i is a, pien View of e bianiz 'from preferably form my neil expansion ehiei;

Fig. 2 is a side elevation of the benk wiix 51e ends bent et righi; angles to me esi/mimi genion;

iig. 3 is e. cree@ section yon me line SW3 i3: e siii@ eevetion o the mail expension or shield formed by bending *whe bigmk back upon tsef;

Eig. 5 is e side elevation, similar to Fig. with he Iie fastener or shield rotated 90;

Fig. 6 is hoz'zente section vthrough e wail or @they sutebe Suppen showing the manner ef inserting ehe mii fastener in s. haie; f Fig. .7 is veieei. secziein of the seme neil fastener and nei.;

Fig. E is e vertcei section, Simile? zo Fig. P?, showing the naii driven inw time e {pan- Sien m? shieid ml after the shieid has been ex pzmded in fif'ereni', planes;

dg. Si is a horifzontai sectien showing the work supported by the mail rather than by 'n'e sueid.

in the preferred form (if my invention, miie :e strip ef mee i.. Fig. l, which may be {'a; roiied steei, eiuminum, brass, leed el' in fact. :my suiabie meta, which can be Shaped and bent. By any suitable mueves, eiie' by hanci or by pess, provide this biank l wih a. Weekene portion 2. This weakened poz'tien may 'ne vefiousy formed; gie'fee'biy i provide "Ehe bien?. wih a ,Biot 3 which W weaken he per@ 2. aise prefeizfny piovide the ens of the biank with ienges er steps l, iii/filer. thisy she/2, mee biank l is benfl beek en imei? en the line it 'foune 2m expansion shieici 6, having /he zwo .7. emi open at one end to reee'we ehe mii. misc pieferebiy piovide he sicies en inerim' curved surface Se@ es to more reediiy t and conform io :he cyindieei Surface of the naii 9.

in use fne mii expansion or shield 6 is 'pleee the i'oe ozrapeture l? in the Wei 01' @they euigaiile support il., es shew?. in 5 end 'Z'. iin i'iese iguzee the Work 12 *be be supported 0n the. weil or ,other suitable support me e iwie tuough which :'iie shieid or eseenez is paee. unxi the angee or sfips e, eemaet wih the exib-@fior Sufaee of the Week. This ef @Guinee is simpiy one wey in' which ehe wozk may 'be Supportaci, my invention not being the work fox" it might be supported as shown i Fig. Si wherein ehe Werk is supporuef directly upon the nai rethee than upon the shieid er festene.

As the mail 9 is 'driven im@ the shield er fastener 6 by blows from a hammer upon the head 14, the two side arms 7, 7 of the fastener or shield will have an initial primary expansion away from each other in one direction. This expansion alone, 'in' most cases, might be sufficient to support any ordinary work or load 12 for the particular size fastener used. To insure, however, an additional and tremendous gripor bond between the shield 6 andthe wall of the hole 10, I have an additional and secondary expansion in a different direction from the first expansion. This may be donc in various ways. I have shown for example the closed end 15 weakened in any suitable manner so that the wedge or conical point 16 of the nail 9 will cause that portion of the shield to expand in a dilferent direction from the expansion of the side arms 7, 7.

Preferably YI accomplish this result by forming the shield 6 with the slot 3 which extends up each arm 7, 7 va short distance from the point 15. As the nail 9 is driven into the shield or fastener 6, and after the primary expansion due to forcing the side arms 7, 7 from each other, the end 16 of the knail will engage with the slot 3 of the shield or expansion and preferably pass through it as shown iniFig. 8, which will cause'the portions 17, 17 of the side arms 7, 7 to be expanded in a different direction from the first or primary expansion. This secondary expansion is shown, somewhat exaggcrated in Fig. 8.

lt will be clear that my invention can be made from sheet metal and formed in a punch press at minimum expense; that a powerful grip or bond is obtained simply by driving the nail into the shield or expansion, and that this expansion occurs sdccessively in two different planes.

Having thus described this invention i1 connection with an illustrative embodiment thereof, to the details of which I do not desire to be limited, what is claimed as new and what is desired to secure by Letters Patent is set forth in the appended claims.

What 'I claim is:-

1. The combination of a nail fastener lia-ving two sides bent back on themselves to form a shield, said sides being adapted to be expanded in different directions, and a apted to expand said sides first' in onenail a direction and a portion of said sides in another direction as the nail is driven into the shield.

2. The combination of a nail fastener having two sides'bent back on themselves to form a shield, said sides being provided with an expanding portion adjacent their meeting ends, said sides being adapted to be expanded in different directions, and a nail adapted to cooperate with said expansible portion and expand said sides first in one direction and a portion of said sides in another fdirection as the nail is driven .into the shield.

3. The combination b a nail fastener having two sides bent batik on themselves to form a shield, said sides being provided with a slot adjacent their meeting ends, said sides being adapted to be expanded in different direct-ions, and a nail adapted to cooperate with saidA slot and eapand said sides first in one direction and a' portion of said sides in another direction" the nail is driven into the shield.

4. A new article of manufacture compris- 'ing a nail expansion shield formed from sheet metal bent bach on itself midway of its length to form two sides of equal length, vone end of the shield being open to receive a nail and the other end provided with weakening means to permit ready expansion of said end. f

5. A new article of manufacture comprising a nail expansion shield formed from sheet metal bent back on itself midway of its length to form two sides of equal length, one end of the shield being open to receive a nail and the other end provided with a slot to permit ready expansion of said end by a nail.

6. The combination of e nail and an expansion shield formed from sheet metal bent back on itself midway of its length to form two sides of equal length, one end of the shield being open to receive a nail v JOHN KARITZKY.

Witnesses:

F. W. KARITZKY, WV. A. Hnssnnr. 

